CVE-2021-20844
CVSS V2 Low 3.5
CVSS V3 Medium 5.7
Description
Improper neutralization of HTTP request headers for scripting syntax vulnerability in the Web GUI of RTX830 Rev.15.02.17 and earlier, NVR510 Rev.15.01.18 and earlier, NVR700W Rev.15.00.19 and earlier, and RTX1210 Rev.14.01.38 and earlier allows a remote authenticated attacker to obtain sensitive information via a specially crafted web page.
Overview
- CVE ID
- CVE-2021-20844
- Assigner
- vultures@jpcert.or.jp
- Vulnerability Status
- Analyzed
- Published Version
- 2021-11-24T16:15:13
- Last Modified Date
- 2021-11-30T07:12:21
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:yamaha:rtx830_firmware:*:*:*:*:*:*:*:* | 1 | OR | 15.02.17 | |
| cpe:2.3:h:yamaha:rtx830:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:yamaha:nvr510_firmware:*:*:*:*:*:*:*:* | 1 | OR | 15.01.18 | |
| cpe:2.3:h:yamaha:nvr510:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:yamaha:nvr700w_firmware:*:*:*:*:*:*:*:* | 1 | OR | 15.00.19 | |
| cpe:2.3:h:yamaha:nvr700w:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:yamaha:rtx1210_firmware:*:*:*:*:*:*:*:* | 1 | OR | 14.01.38 | |
| cpe:2.3:h:yamaha:rtx1210:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:ntt-west:biz_box_rtx830_firmware:*:*:*:*:*:*:*:* | 1 | OR | 15.02.17 | |
| cpe:2.3:h:ntt-west:biz_box_rtx830:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:ntt-west:biz_box_nvr510_firmware:*:*:*:*:*:*:*:* | 1 | OR | 15.01.18 | |
| cpe:2.3:h:ntt-west:biz_box_nvr510:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:ntt-west:biz_box_nvr700w_firmware:*:*:*:*:*:*:*:* | 1 | OR | 15.00.19 | |
| cpe:2.3:h:ntt-west:biz_box_nvr700w:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:ntt-west:biz_box_rtx1210_firmware:*:*:*:*:*:*:*:* | 1 | OR | 14.01.38 | |
| cpe:2.3:h:ntt-west:biz_box_rtx1210:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:S/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 3.5
- Severity
- LOW
- Exploitability Score
- 6.8
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 5.7
- Base Severity
- MEDIUM
- Exploitability Score
- 2.1
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| http://www.rtpro.yamaha.co.jp/RT/FAQ/Security/JVNVU91161784.html | Mitigation Vendor Advisory |
| https://business.ntt-east.co.jp/topics/2021/11_09.html | Mitigation Vendor Advisory |
| https://jvn.jp/en/vu/JVNVU91161784/index.html | Mitigation Third Party Advisory |
| https://www.ntt-west.co.jp/smb/kiki_info/info/211109.html | Mitigation Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-20844 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20844 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:44:32 | Added to TrackCVE | |||
| 2022-12-05 15:09:18 | 2021-11-24T16:15Z | 2021-11-24T16:15:13 | CVE Published Date | updated |
| 2022-12-05 15:09:18 | 2021-11-30T07:12:21 | CVE Modified Date | updated | |
| 2022-12-05 15:09:18 | Analyzed | Vulnerability Status | updated |